"They [Warner Bros.] said we want to show you some of the reactions of past cast members have gotten," Affleck revealed. "People who were in these movies who did a great job and people were like 'KILL HIM.'"

He says the studio warned him to stay offline after the story broke, but Ben didn't listen.

"I was like, I'm a big boy ... I handle s**t. I'm very tough," he said.

So ... how'd it go? Check out the clip above!

We recently talked to Marvel master Stan Lee about Batfleck too -- see what he had to say about the guy who played Daredevil switching roles.